Author: Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 104
Book Description
Environmental Study of the Blackwood River Estuary
Author: Environmental Study of the Blackwood River Estuary
Author: Environmental Study of the Blackwood River Estuary
Author: Ernest P. HodgkinPublisher:
ISBN: 9780724474608
Category : Dredging
Languages : en
Pages : 312
Book Description
Environmental Study of the Blackwood River Estuary
Author: Ernest Pease HodgkinPublisher:
ISBN:
Category : Ecology
Languages : en
Pages :
Book Description
Estuaries and Nutrients
Author: Bruce J. NeilsonPublisher: Springer Science & Business Media
ISBN: 146125826X
Category : Science
Languages : en
Pages : 640
Book Description
Estuaries are eternally enriched. Their positions at the foot of watersheds and their convenience as receiving bodies for the wastes of cites, towns and farms results in continuous addition of nutrients - those elements and compounds which are essential for organic production. Such materials must be added to these complex bodies of water to sustain production, since there is a net loss of water and its contents to the oceans. Enrichment from land and the ocean and the subsequent cycling of the original chemicals or their derivatives contribute to the extraordinarily high values of estuaries for human purposes. Many estuaries are able to assimilate large quantities of nutrients despite the great fluctuations which occur with variations in the flow from tributaries. The nutrients can be stored, incorporated in standing crops of plants, released, cycled and exported - and the system frequently achieves high production of plants and and animals without creation of any undesirable results of enrichment. Excessive enrichment with the same elements and compounds can, however, be highly detrimental to estuaries and their uses. Coastal cities are usually located on the estuaries which provided a harbor for the- and which now receive partially treated sewage and other wastes from the expanding population and industrial activity. Conversion of woodlands to agricultural use and the extensive application of fertilizers have resulted in the flow of large quantities of nutrients down the hill or slopes and eventually into the estuary.
Ernest Hodgkin's Swanland
Author: Anne BrearleyPublisher: UWA Publishing
ISBN: 1920694382
Category : Estuarine biology
Languages : en
Pages : 586
Book Description
Synthesis of the results of may years of research on Estuarine environments form the Murchison to Esperance, Western Australia.
Monographic Series
Author: Library of CongressPublisher:
ISBN:
Category : Monographic series
Languages : en
Pages : 804
Book Description
Saltmarsh Ecology
Author: Paul AdamPublisher: Cambridge University Press
ISBN: 9780521448239
Category : Nature
Languages : en
Pages : 480
Book Description
A broad introduction to the ecology of the unique environment of the saltmarsh.
Synthesis and Modelling of Intermittent Estuaries
Author: W.R. CuffPublisher: Springer Science & Business Media
ISBN: 3642499910
Category : Science
Languages : en
Pages : 307
Book Description
This book reports on the findings of, and swnmarizes the conclusions from, the Port Hacking Estuary Project, a model-guided, multidisciplinary study of an estuarine ecosystem. The Project began in 1973, at a time when it was thought that environmental problems could be solved readily by assembling a multidisciplinary team of research scientists and having them co-ordinate their research around the construction of an ecosystem model. But a decade has passed and time has not been easy on this approach. The anticipated predictive dynamic models have not been produced and bitter argument has often marred the course of such studies. Yet the need to anticipate the flow of various chemical species (carbon, oxygen, nitrogen, phosphorus, toxicants) through the environment remains: the evidence is everywhere, from fertilization of urban lakes to acid rain. The magnitude of the problem ensures that funds will continue to be made available - although with short-term variations as perceptions swing. It is thus clear that although the difficulties are great, so is the need. It is from this background that we present this book. The Port Hacking Estuary Project involved some 15 - 20 research scientists over a period of 5 years. The goal was to research the flow of carbon into, within, and out of a small unpolluted estuary chosen for convenience rather than for its social significance. The idea was to use the information obtained from these studies to build a predictive dynamic model.
Author: